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source $rootdir/test/nvmf/common.sh
function migration_tc2_cleanup_nvmf_tgt() {
local i
if [[ ! -r "$nvmf_dir/nvmf_tgt.pid" ]]; then
warning "Pid file '$nvmf_dir/nvmf_tgt.pid' does not exist. "
return
fi
if [[ -n "$1" ]]; then
trap 'error_exit "${FUNCNAME}" "${LINENO}"' INT ERR EXIT
pkill --signal $1 -F $nvmf_dir/nvmf_tgt.pid || true
sleep 5
if ! pkill -F $nvmf_dir/nvmf_tgt.pid; then
fail "failed to kill nvmf_tgt app"
fi
else
pkill --signal SIGTERM -F $nvmf_dir/nvmf_tgt.pid || true
for ((i = 0; i < 20; i++)); do
if ! pkill --signal 0 -F $nvmf_dir/nvmf_tgt.pid; then
break
fi
sleep 0.5
done
if pkill --signal 0 -F $nvmf_dir/nvmf_tgt.pid; then
error "nvmf_tgt failed to shutdown"
fi
fi
rm $nvmf_dir/nvmf_tgt.pid
unset -v nvmf_dir rpc_nvmf
}
function migration_tc2_cleanup_vhost_config() {
timing_enter migration_tc2_cleanup_vhost_config
trap 'migration_tc2_cleanup_nvmf_tgt SIGKILL; error_exit "${FUNCNAME}" "${LINENO}"' INT ERR EXIT
notice "Shutting down all VMs"
vm_shutdown_all
notice "Removing vhost devices & controllers via RPC ..."
# Delete bdev first to remove all LUNs and SCSI targets
$rpc_0 bdev_nvme_detach_controller Nvme0
$rpc_0 vhost_delete_controller $incoming_vm_ctrlr
$rpc_1 delete_nvme_controller Nvme0
$rpc_1 vhost_delete_controller $target_vm_ctrlr
notice "killing vhost app"
vhost_kill 0
vhost_kill 1
unset -v incoming_vm target_vm incoming_vm_ctrlr target_vm_ctrlr
unset -v rpc_0 rpc_1
trap 'error_exit "${FUNCNAME}" "${LINENO}"' INT ERR EXIT
migration_tc2_cleanup_nvmf_tgt
timing_exit migration_tc2_cleanup_vhost_config
}
function migration_tc2_configure_vhost() {
timing_enter migration_tc2_configure_vhost
# Those are global intentionally - they will be unset in cleanup handler
nvmf_dir="$VHOST_DIR/nvmf_tgt"
incoming_vm=1
target_vm=2
incoming_vm_ctrlr=naa.VhostScsi0.$incoming_vm
target_vm_ctrlr=naa.VhostScsi0.$target_vm
rpc_nvmf="$rootdir/scripts/rpc.py -s $nvmf_dir/rpc.sock"
rpc_0="$rootdir/scripts/rpc.py -s $(get_vhost_dir 0)/rpc.sock"
rpc_1="$rootdir/scripts/rpc.py -s $(get_vhost_dir 1)/rpc.sock"
# Default cleanup/error handlers will not shutdown nvmf_tgt app so setup it
# here to teardown in cleanup function
trap 'migration_tc2_error_cleanup; error_exit "${FUNCNAME}" "${LINENO}"' INT ERR EXIT
# Run nvmf_tgt and two vhost instances:
# nvmf_tgt uses core id 2 (-m 0x4)
# First uses core id 0
# Second uses core id 1
# This force to use VM 1 and 2.
timing_enter start_nvmf_tgt
notice "Running nvmf_tgt..."
mkdir -p $nvmf_dir
rm -f $nvmf_dir/*
$SPDK_BIN_DIR/nvmf_tgt -s 512 -m 0x4 -r $nvmf_dir/rpc.sock --wait-for-rpc &
local nvmf_tgt_pid=$!
echo $nvmf_tgt_pid > $nvmf_dir/nvmf_tgt.pid
waitforlisten "$nvmf_tgt_pid" "$nvmf_dir/rpc.sock"
$rpc_nvmf framework_start_init
$rpc_nvmf nvmf_create_transport -t RDMA -u 8192
$rootdir/scripts/gen_nvme.sh --json | $rpc_nvmf load_subsystem_config
timing_exit start_nvmf_tgt
vhost_run 0 "-m 0x1 -s 512 -u"
vhost_run 1 "-m 0x2 -s 512 -u"
local rdma_ip_list
local nvmf_target_ip
rdma_ip_list=$(get_available_rdma_ips)
nvmf_target_ip=$(echo "$rdma_ip_list" | head -n 1)
if [[ -z "$nvmf_target_ip" ]]; then
fail "no NIC for nvmf target"
fi
notice "Configuring nvmf_tgt, vhost devices & controllers via RPC ..."
# Construct shared bdevs and controllers
$rpc_nvmf nvmf_create_subsystem nqn.2016-06.io.spdk:cnode1 -a -s SPDK00000000000001
$rpc_nvmf nvmf_subsystem_add_ns nqn.2016-06.io.spdk:cnode1 Nvme0n1
$rpc_nvmf nvmf_subsystem_add_listener nqn.2016-06.io.spdk:cnode1 -t rdma -a $nvmf_target_ip -s 4420
$rpc_0 bdev_nvme_attach_controller -b Nvme0 -t rdma -f ipv4 -a $nvmf_target_ip -s 4420 -n "nqn.2016-06.io.spdk:cnode1"
$rpc_0 vhost_create_scsi_controller $incoming_vm_ctrlr
$rpc_0 vhost_scsi_controller_add_target $incoming_vm_ctrlr 0 Nvme0n1
$rpc_1 bdev_nvme_attach_controller -b Nvme0 -t rdma -f ipv4 -a $nvmf_target_ip -s 4420 -n "nqn.2016-06.io.spdk:cnode1"
$rpc_1 vhost_create_scsi_controller $target_vm_ctrlr
$rpc_1 vhost_scsi_controller_add_target $target_vm_ctrlr 0 Nvme0n1
notice "Setting up VMs"
vm_setup --os="$os_image" --force=$incoming_vm --disk-type=spdk_vhost_scsi --disks=VhostScsi0 \
--migrate-to=$target_vm --memory=1024 --vhost-name=0
vm_setup --force=$target_vm --disk-type=spdk_vhost_scsi --disks=VhostScsi0 --incoming=$incoming_vm --memory=1024 \
--vhost-name=1
# Run everything
vm_run $incoming_vm $target_vm
# Wait only for incoming VM, as target is waiting for migration
vm_wait_for_boot 300 $incoming_vm
notice "Configuration done"
timing_exit migration_tc2_configure_vhost
}
function migration_tc2_error_cleanup() {
trap - SIGINT ERR EXIT
set -x
vm_kill_all
migration_tc2_cleanup_vhost_config
notice "Migration TC2 FAILED"
}
function migration_tc2() {
# Use 2 VMs:
# incoming VM - the one we want to migrate
# targe VM - the one which will accept migration
local job_file="$testdir/migration-tc2.job"
local log_file
log_file="/root/$(basename ${job_file%%.*}).log"
migration_tc2_configure_vhost
# Run fio before migration
notice "Starting FIO"
vm_check_scsi_location $incoming_vm
run_fio $fio_bin --job-file="$job_file" --no-wait-for-fio --local --vm="${incoming_vm}$(printf ':/dev/%s' $SCSI_DISK)"
# Wait a while to let the FIO time to issue some IO
sleep 5
# Check if fio is still running before migration
if ! is_fio_running $incoming_vm; then
vm_exec $incoming_vm "cat $log_file"
error "FIO is not running before migration: process crashed or finished too early"
fi
vm_migrate $incoming_vm
sleep 3
# Check if fio is still running after migration
if ! is_fio_running $target_vm; then
vm_exec $target_vm "cat $log_file"
error "FIO is not running after migration: process crashed or finished too early"
fi
notice "Waiting for fio to finish"
local timeout=40
while is_fio_running $target_vm; do
sleep 1
echo -n "."
if ((timeout-- == 0)); then
error "timeout while waiting for FIO!"
fi
done
notice "Fio result is:"
vm_exec $target_vm "cat $log_file"
migration_tc2_cleanup_vhost_config
notice "Migration TC2 SUCCESS"
}
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